分子光谱法测定钼的研究进展  

Progress in molecular spectrum analysis of molybdenum

作　　者：柳玉英[1] 周丽[1] 王玉金[1] 

机构地区：[1]山东理工大学化工学院,山东淄博255049

出　　处：《冶金分析》2009年第12期33-41,共9页Metallurgical Analysis

基　　金：山东省自然科学基金资助项目(Y2008B26)

摘　　要：评述了自1998年以来国内外分子光谱法测定钼的进展情况。内容包括分光光度法、荧光分析法、化学发光分析法、共振光散射法以及流动注射和化学计量学在分子光谱中的应用。在各种方法中,常规分光光度法仍是目前应用范围最广的方法。在所用的显色剂中,硫氰酸盐和荧光酮类试剂是目前测定微量钼的重要试剂,通过在分子上引入不同的吸电子基团,可以改善荧光酮类试剂的选择性。此外,催化动力学光度法由于其较高的灵敏度和选择性,在微量钼的测定方面也得到了日益广泛的应用。荧光分析法、化学发光和共振光散射分析法在测定微量钼方面也有不同程度的应用,相关的文献报道较少。在每种分析方法中,主要从测定体系、测定条件、灵敏度以及实际应用等方面进行归纳和概述。A review is given for the progress in the molecular spectrum determination of molybdenum during the last ten years. Spectrophotometry, fluorescence, chemiluminescence, resonance light scattering and the application of flow-injection ＆ stoichiometry in molecular spectrum are discussed in detail. Among methods presented in the paper, conventional spectrophotometry is the most widely applied technique at present, and thiocyanate and fluorone reagents are the most important chromogenic reagents for the determination of molybdenum. By introducing different kinds of groups drawing electron, the selectivity of fluorone reagents can be improved. In addition, catalytic spectrophotometry has been widely used in the determination of molybdenum because of its high sensitivity and selectivity. Fluorescence, chemiluminescence, and resonance light scattering techniques have also showed their application in the determination of molybdenum to different extent, but there are few reports. The references of every method were summarized from the detection systems, sensitivities, applications, and so on.

关 键 词：钼 分子光谱 测定 研究进展 

分 类 号：O657.3[理学—分析化学]